fix page-ID2-ID3

app/controllers/city_controller.rb

 class CityController < ApplicationController
   def list_city
-    @city_vietnam = City.city_vietnam
-    @city_inter = City.city_inter
+    @cities_vietnam = City.cities(City::REGION_VN_ID)
+    @cities_international = City.cities(City::REGION_INTERNATIONAL_ID)
   end
 end
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app/models/city.rb

@@ -3,7 +3,8 @@ class City < ApplicationRecord
   has_and_belongs_to_many :jobs
   has_and_belongs_to_many :companies
   LATEST_CITY_NUMBER = 9
+  REGION_VN_ID = 1
+  REGION_INTERNATIONAL_ID = 2
   scope :top_cities, -> { joins(:jobs).group(:name).order('count_all DESC').count.take(LATEST_CITY_NUMBER) }
-  scope :city_vietnam, -> { joins(:jobs).group(:name).having('count_all >= ?', 1).where('region_id = 1').order('count_all DESC').count }
-  scope :city_inter, -> { joins(:jobs).group(:name).having('count_all >= ?', 1).where('region_id = 2').order('count_all DESC').count }
+  scope :cities, ->(value) { joins(:jobs).group(:name).having('count_all >= ?', 1).where("region_id = #{value}").order('count_all DESC').count }
 end
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app/views/city/list_city.html.slim

-- provide :title, 'Cities'
+- provide :title, 'City List'
 
 .container
   h3.p-3
@@ -12,7 +12,7 @@
     h3
       | Việt Nam
       .row.my-3.text-center.fs-5
-        - @city_vietnam.each do |name, amount|
+        - @cities_vietnam.each do |name, amount|
             .col-3.p-2.border.mb-1.fw-normal.bg-white
               = link_to name, "#"
               p.mb-1
@@ -21,7 +21,7 @@
     h3
       | International
       .row.my-3.text-center.fs-5
-        - @city_inter.each do |name, amount|
+        - @cities_international.each do |name, amount|
           .col-3.p-2.border.mb-1.fw-normal.bg-white
             = link_to name, "#"
             p.mb-1

app/views/industry/list_industry.html.slim

-- provide :title, 'Industries'
+- provide :title, 'Industry List'
 
 .container
   h3.p-3

config/routes.rb

 Rails.application.routes.draw do
   root 'top#home'
-  get  '/cities', to: 'city#list_city'
-  get  '/industries', to: 'industry#list_industry'
-  resource :cities
-  resource :industries
+  get  'cities', to: 'city#list_city'
+  get  'industries', to: 'industry#list_industry'
 end
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